Numerical simulation of the transient heat transfer during nucleate boiling of refrigerant HFE-7100
Numerical simulation of the transient heat transfer during nucleate boiling of refrigerant HFE-7100
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DOI：
10.1016/j.ijrefrig.2010.07.013
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发表时间：
2010-11
期刊：
影响因子：
--
通讯作者：
C. Kunkelmann;P. Stephan
中科院分区：
文献类型：
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作者：
C. Kunkelmann;P. Stephan
对制冷剂HFE-7100的核态沸腾瞬态传热进行了数值模拟，并与实验结果进行了比较。对OpenFOAM CFD软件包中的流体体积求解器进行了修改和扩展，使之适用于单泡沸腾的数值模拟。该模型跟踪气泡的形状在生长，离开和垂直上升，并结合蒸发在液-气界面，以及在3相接触线的微尺度传热。模拟结果给出了洞察固体壁面，过热液体层和增长的汽泡之间的瞬态传热。边界条件已根据时间和空间上的高分辨率的实验研究选择。整体参数，如气泡尺寸和平均壁面温度，以及局部现象，如冷却的加热器在接触线是在很好的协议的实验数据。
The transient heat transfer during nucleate boiling of refrigerant HFE-7100 is investigated numerically and the results are compared to experimental data. The Volume-of-Fluid solver of the OpenFOAM CFD package was modified and extended for the numerical simulation of single bubble boiling. The model tracks the bubble shape during growth, departure and vertical rise and incorporates evaporation at the liquid–vapor interface as well as microscale heat transfer at the 3-phase contact line. The simulation results give insight into the transient heat transfer between the solid wall, the superheated liquid layer and the growing vapor bubble. The boundary conditions have been chosen according to temporally and spatially highly resolved experimental investigations. Global parameters such as bubble size and mean wall superheat as well as local phenomena such as the cooling of the heater at the contact line are in good agreement to the experimental data.